
#include "oled.h"

#include "stdlib.h"

#include "oledfont.h"    

#include "bsp_iic.h"

//OLED的显存

//存放格式如下.

//[0]0 1 2 3 ... 127    

//[1]0 1 2 3 ... 127    

//[2]0 1 2 3 ... 127    

//[3]0 1 2 3 ... 127    

//[4]0 1 2 3 ... 127    

//[5]0 1 2 3 ... 127    

//[6]0 1 2 3 ... 127    

//[7]0 1 2 3 ... 127                       



void Write_IIC_Command(unsigned char IIC_Command)

{

        IIC_Start();

        IIC_Send_Byte(0x78);            //Slave address,SA0=0

        IIC_Wait_Ack(); 

        IIC_Send_Byte(0x00);                    //write command

        IIC_Wait_Ack(); 

        IIC_Send_Byte(IIC_Command); 

        IIC_Wait_Ack(); 

        IIC_Stop();

}

/**********************************************

// IIC Write Data

**********************************************/

void Write_IIC_Data(unsigned char IIC_Data)

{

        IIC_Start();

        IIC_Send_Byte(0x78);                    //D/C#=0; R/W#=0

        IIC_Wait_Ack(); 

        IIC_Send_Byte(0x40);                    //write data

        IIC_Wait_Ack(); 

        IIC_Send_Byte(IIC_Data);

        IIC_Wait_Ack(); 

        IIC_Stop();

}

void OLED_WR_Byte(unsigned dat,unsigned cmd)

{

        if(cmd)

                        {



   Write_IIC_Data(dat);

   

                }

        else {

   Write_IIC_Command(dat);

                

        }





}





/********************************************

// fill_Picture

********************************************/

void fill_picture(unsigned char fill_Data)

{

        unsigned char m,n;

        for(m=0;m<8;m++)

        {

                OLED_WR_Byte(0xb0+m,0);         //page0-page1

                OLED_WR_Byte(0x00,0);           //low column start address

                OLED_WR_Byte(0x10,0);           //high column start address

                for(n=0;n<128;n++)

                        {

                                OLED_WR_Byte(fill_Data,1);

                        }

        }

}





/***********************Delay****************************************/

void Delay_50ms(unsigned int Del_50ms)

{

        unsigned int m;

        for(;Del_50ms>0;Del_50ms--)

                for(m=6245;m>0;m--);

}



void Delay_1ms(unsigned int Del_1ms)

{

        unsigned char j;

        while(Del_1ms--)

        {       

                for(j=0;j<123;j++);

        }

}



//坐标设置



void OLED_Set_Pos(unsigned char x, unsigned char y) 

{ 

        OLED_WR_Byte(0xb0+y,OLED_CMD);

        OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);

        OLED_WR_Byte((x&0x0f),OLED_CMD); 

}         

//开启OLED显示    

void OLED_Display_On(void)

{

        OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令

        OLED_WR_Byte(0X14,OLED_CMD);  //DCDC ON

        OLED_WR_Byte(0XAF,OLED_CMD);  //DISPLAY ON

}

//关闭OLED显示     

void OLED_Display_Off(void)

{

        OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令

        OLED_WR_Byte(0X10,OLED_CMD);  //DCDC OFF

        OLED_WR_Byte(0XAE,OLED_CMD);  //DISPLAY OFF

}                                        

//清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!        

void OLED_Clear(void)  

{  

        u8 i,n;             

        for(i=0;i<8;i++)  

        {  

                OLED_WR_Byte (0xb0+i,OLED_CMD);    //设置页地址（0~7）

                OLED_WR_Byte (0x00,OLED_CMD);      //设置显示位置—列低地址

                OLED_WR_Byte (0x10,OLED_CMD);      //设置显示位置—列高地址   

                for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA); 

        } //更新显示

}

void OLED_On(void)  

{  

        u8 i,n;             

        for(i=0;i<8;i++)  

        {  

                OLED_WR_Byte (0xb0+i,OLED_CMD);    //设置页地址（0~7）

                OLED_WR_Byte (0x00,OLED_CMD);      //设置显示位置—列低地址

                OLED_WR_Byte (0x10,OLED_CMD);      //设置显示位置—列高地址   

                for(n=0;n<128;n++)OLED_WR_Byte(1,OLED_DATA); 

        } //更新显示

}

//在指定位置显示一个字符,包括部分字符

//x:0~127

//y:0~63

//mode:0,反白显示;1,正常显示                             

//size:选择字体 16/12 

void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size)

{       

        unsigned char c=0,i=0;  

                c=chr-' ';//得到偏移后的值                      

                if(x>Max_Column-1){x=0;y=y+2;}

                if(Char_Size ==16)

                        {

                        OLED_Set_Pos(x,y);      

                        for(i=0;i<8;i++)

                        OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);

                        OLED_Set_Pos(x,y+1);

                        for(i=0;i<8;i++)

                        OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);

                        }

                        else {  

                                OLED_Set_Pos(x,y);

                                for(i=0;i<6;i++)

                                OLED_WR_Byte(F6x8[c][i],OLED_DATA);

                                

                        }

}

//m^n函数

u32 oled_pow(u8 m,u8 n)

{

        u32 result=1;    

        while(n--)result*=m;    

        return result;

}                                 

//显示2个数字

//x,y :起点坐标  

//len :数字的位数

//size:字体大小

//mode:模式     0,填充模式;1,叠加模式

//num:数值(0~4294967295);                         

void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2)

{               

        u8 t,temp;

        u8 enshow=0;                                               

        for(t=0;t<len;t++)

        {

                temp=(num/oled_pow(10,len-t-1))%10;

                if(enshow==0&&t<(len-1))

                {

                        if(temp==0)

                        {

                                OLED_ShowChar(x+(size2/2)*t,y,' ',size2);

                                continue;

                        }else enshow=1; 

                         

                }

                OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2); 

        }

} 

//显示一个字符号串

void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size)

{

        unsigned char j=0;

        while (chr[j]!='\0')

        {               OLED_ShowChar(x,y,chr[j],Char_Size);

                        x+=8;

                if(x>120){x=0;y+=2;}

                        j++;

        }

}

//显示汉字

void OLED_ShowCHinese(u8 x,u8 y,u8 no)

{                           

        u8 t,adder=0;

        OLED_Set_Pos(x,y);      

    for(t=0;t<16;t++)

                {

                                OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);

                                adder+=1;

     }  

                OLED_Set_Pos(x,y+1);    

    for(t=0;t<16;t++)

                        {       

                                OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);

                                adder+=1;

      }                                 

}

/***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************/

void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])

{       

 unsigned int j=0;

 unsigned char x,y;

  

  if(y1%8==0) y=y1/8;      

  else y=y1/8+1;

        for(y=y0;y<y1;y++)

        {

                OLED_Set_Pos(x0,y);

    for(x=x0;x<x1;x++)

            {      

                OLED_WR_Byte(BMP[j++],OLED_DATA);               

            }

        }

} 



//初始化SSD1306                                     

void OLED_Init(void)

{       

        IIC_Init();

        Delay_ms(800);

        OLED_WR_Byte(0xAE,OLED_CMD);//--display off

        OLED_WR_Byte(0x00,OLED_CMD);//---set low column address

        OLED_WR_Byte(0x10,OLED_CMD);//---set high column address

        OLED_WR_Byte(0x40,OLED_CMD);//--set start line address  

        OLED_WR_Byte(0xB0,OLED_CMD);//--set page address

        OLED_WR_Byte(0x81,OLED_CMD); // contract control

        OLED_WR_Byte(0xFF,OLED_CMD);//--128   

        OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap 

        OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverse

        OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)

        OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 duty

        OLED_WR_Byte(0xC8,OLED_CMD);//Com scan direction

        OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset

        OLED_WR_Byte(0x00,OLED_CMD);//

        

        OLED_WR_Byte(0xD5,OLED_CMD);//set osc division

        OLED_WR_Byte(0x80,OLED_CMD);//

        

        OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode off

        OLED_WR_Byte(0x05,OLED_CMD);//

        

        OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge Period

        OLED_WR_Byte(0xF1,OLED_CMD);//

        

        OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartion

        OLED_WR_Byte(0x12,OLED_CMD);//

        

        OLED_WR_Byte(0xDB,OLED_CMD);//set Vcomh

        OLED_WR_Byte(0x30,OLED_CMD);//

        

        OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enable

        OLED_WR_Byte(0x14,OLED_CMD);//

        

        OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel

}  






